Method for Producing a Stack of Magnetic Sheets for a Rotor and/or Stator of an Electric Machine, and Method for Producing an Electric Machine, and Method for Producing an Installation and a Vehicle

Abstract

Various embodiments include a method for manufacturing a stack of magnetic laminations for a rotor and/or stator of an electric machine. The method includes: recording a respective physical property of each respective magnetic lamination from a plurality of magnetic laminations; determining a setpoint value for a physical variable of the stack of magnetic laminations; ascertaining a stacking sequence of the individual magnetic laminations of the plurality reducing a deviation of an actual value for the physical variable of the stack with the ascertained stacking sequence from a setpoint value in relation to stacks with other stacking sequences of magnetic laminations; and stacking the plurality of the magnetic laminations in the ascertained stacking sequence.

What is claimed is: 
     
         1 . A method for manufacturing a stack of magnetic laminations for a rotor and/or stator of an electric machine, the method comprising:
 recording   a respective physical property of each respective magnetic lamination from a plurality of magnetic laminations;   determining a setpoint value for a physical variable of the stack of magnetic laminations;   ascertaining a stacking sequence of the individual magnetic laminations of the plurality reducing a deviation of an actual value for the physical variable of the stack with the ascertained stacking sequence from a setpoint value in relation to stacks with other stacking sequences of magnetic laminations; and   stacking the plurality of the magnetic laminations in the ascertained stacking sequence.   
     
     
         2 . The method as claimed in  claim 1 , further comprising manufacturing the plurality of magnetic laminations using screen and/or stencil printing. 
     
     
         3 . The method as claimed in  claim 1 , wherein the respective physical property comprises one or more of: a geometric dimensions of the magnetic lamination, a density of the magnetic lamination, a microstructure, chemical composition, a topography, a heat conductivity, one or more mechanical internal stresses of the magnetic lamination, one or more magnetic properties of the magnetic lamination, a saturation field strength, a coercive field strength, a remanence, a hysteresis. 
     
     
         4 . The method as claimed in  claim 1 , wherein the setpoint value for the physical variable comprises one or more of: geometric dimensions of the stack of magnetic laminations, an overall density of the stack, a variance in geometric dimensions of the stack, one or more magnetic properties of the stack, a magnetic saturation field strength, parameters of a hysteresis curve, a coercive field strength, or a remanence. 
     
     
         5 . The method as claimed in  claim 1 , wherein the stacking sequence is ascertained for a genuine subset of the plurality of magnetic laminations. 
     
     
         6 . The method as claimed in  claim 1 , wherein ascertaining the stacking sequence includes firstly determining at least two or more candidate stacking sequences for a stacking sequence and comparing actual values for the candidate stacking sequences with the setpoint value and ascertaining as stacking sequence that candidate stacking sequence that has an actual value deviating the least from the setpoint value. 
     
     
         7 . The method as claimed in  claim 1 , wherein the stacking sequence is ascertained using artificial intelligence. 
     
     
         8 . The method as claimed in  claim 1 , further comprising:
 recording a geometric shape of the stack; and   ascertaining a geometric shape of a stacking aid which makes it possible to stack the magnetic laminations in the ascertained stacking sequence.   
     
     
         9 . The method as claimed in  claim 1 , further comprising:
 adapting and/or exchanging elements for adapting the actual value to the setpoint value;   the stacking sequence is ascertained taking into account the adapting and/or exchanging elements in such a way that a deviation of an actual value for the physical variable of the stack with the ascertained stacking sequence from the at least one setpoint value is reduced by means of the adapting and/or exchanging elements.   
     
     
         10 . The method as claimed in  claim 1 , wherein the adapting and/or exchanging elements are manufactured using additive manufacturing. 
     
     
         11 . The method as claimed in  claim 1 , wherein the stacking aid is manufactured by additive manufacturing processes and the stack is formed by means of the stacking aid. 
     
     
         12 . The method as claimed in  claim 1 , wherein the magnetic laminations are stacked and pressed together. 
     
     
         13 . The method as claimed in  claim 1 , wherein the magnetic laminations are alternately stacked and pressed together. 
     
     
         14 . A method for manufacturing an electric machine, the method comprising:
 forming a rotor and/or a stator with a stack of magnetic laminations;   wherein the stack of magnetic laminations is manufactured by a method for according to  claim 1 .   
     
     
         15 . (canceled)